I remember watching one of the old UFCs where Koji Kitao fights a guy from a Korean style. Koji takes a punch to the nose and quits, something I'd never seen happen in MMA. I remember thinking at the time that it seems like more guys would do that, because being punched in the nose fucking sucks.

That was against Mark "The Cobra" Hall in UFC 9. The punch was hard to catch live because Kitao got a takedown immediately after. First time viewing years ago, I thought his nose began leaking due to high blood pressure and the force of his own slam rupturing his blood vessels.

Nathan Jones actually commented on the Pride video. He claims Kitao hated physical discomfort and wouldn't allow himself to be struck while choreographing the match. He also says five of the seven fights in Pride 1 were works (Not a stretch to believe).

Here are Kitao's other fights:

^Another example of a shoot fight breaking out in a scripted wrestling match.